Mobile power mechanism



.my 29 1924. n "1,503,056 C. B. MAGRATH- I MOBVILE POWER MECHANISM' *Filed April 11 192:5l '2 sheets-sheet 2 Nmfwmwl a -Y Hh... 3.]\}\] 1.. 1/91 E. M EAS v Patented July Z9, 1924.

narra cHAaLE'sB. MAGRATH, or cHcAedILLINos.

MOBILE POWER MECHANISM.

application filed vapra 11, 1923. serial No. 631,367.

To :allcv'ltomtmay concern/b it Vknown that I, CHARLEs B. MAGRATH, subjectof theKing .of Great Britain, residing Vat Chicago,.in the county of Cook and State of Illinois, have invented certainnew and useful Improvements-in Mobile Power Mechanisms, of which the following is a specication.

This .'nvention `rela-tes Yto improvements in mobile powenmechanisma more particularly that class .of devicesv which is supported and movable upon a track. In the vuse ofthis classof devices, as for enamplaniovable steam shovels-as in the embodiment `shown in the accompanying drawings-tis customary -to lay the track insections, comprising the usual parallel rail sections and transversesleepers or ties. Asit r becomes1nece-ssary to move the device forward, it is customary in present day practice to either utilize the efforts cfa large number of workmen to move the rear section of the track to the front thereof, or more frequently to disassemble a rear section, carry the elements thereof tothe front and re-assemble them in alinement with the track. y

`The object of my invention is to expedite this handling of the track sections and to eliminate .the services of a relatively large number of laborers now required..

.I accomplishthis object by 4.providing a track or rail attached to and supported by thedevice itself and extending from a point at the rearofthe body to a point at the side and adjacent the front thereof. At the front terminus of this'rail l kprovide a swinging post crane having va rail section alinable with the main rail. Hoisting meansA is provided attached to a trolley, which runs upon the rail by means of which a complete track section may be lifted and moved with the trolley upon the rail section` carried by the fcrane and thereafter swung to a position in front of the` device remainder of the into alinement with the track.

Other objects lof my invention relate tothe elements and'details of construction enabling me to accomplish this object.

Inthe following specification and accom-V panying 'drawings AI have described and;A

shown one embodiment of my invention.

Inthe drawings- Figure l is a side elevationv partially diagrammatic, illustrating Amy invention .as

applied-to a mobile ysteam shovel;

Fig. 2 is a Vplan view of the rail and crane structure, thek body of the devicebeing indicated in outline;

Fig. 3 is a plan view of Ythe supporting track, the rail of the device being. indicated in dotted lines together with the limit positions ofthe post crane; Y

Fig. 4 is a vertical section along thefline 4,4 of Fig. 2, the trolley being indicated in dotted lines;

Fig. 5 is a detail elevation the I and hoisting means, showing the engagement with a section of the track; Fig. 6 is a side elevation rof a ,por-tion of the main trolley carrying rail and thecrane rail showing vthe latten-in Valinement Ithere-` with, the blocking positionzo'f the latch te-Y ing indicated in dotted lines, Fig. 7 is a section along the'line 7, 7 ofFig.`6;and Fig. 8isa` vertical section along `'the line 8, 8 of Fig. 6.

Like numerals refer to like elements vthroughout the drawings in which lO ldesignates generally a steam shovel havin'g tlie supporting trucks 11 carried by the wheels 12. At the front of the -fd'evice is provided the usual circle 13 carrying the scoop beams and other elements not forming-a part of the present invention.r4

The body 1 0aof he shovel is carried upon the longitudinal beams,or sill`s 141 5, 'of L'construction as shown in Figure 4,!f'o'r eX- ample. `Carried by the `deviceis the railfl parallel to and lspaced from one side of the body 10a along the major portionof its length and curving around .parallel tol the rear end of said body. as shownV in Fig 2, for example. This angular rear portion 1 6a is supported by the hangers 18 and 19, pro

jecting outwardly from the body of the shovel, as shown in Figs. 1 and 2,for ex are secured thereto by clamps 1 4? and bolts 14h, beingsecured at the outer extremity to the bolts or :rivets 2,3. Braces 2aare #sin'ii-V larly securedvto thelower flange .iofsillll the upper flangeof rail v16 byjmeansofV and are inclined upwardly toward and attached to the plates 22 by bolts 25, see Fig. 4.

The front end 16b of the rail 16 terminates 10 comprising a post crane of well known construction, a suitable bearing plate 36 being provided at the topof the post 33, and a support 37 being provided at the lower end. post 33 being journaled between these members, as shown in Fig. l, and in the emvbodiment shown, preferably inclined outwardly from top to bottom. The range of movement ofthe horizontal I-beam 32 is indicated in dotted lines in Fig. 3, the beam. 20 32 being located beneath the circle 13 and arranged and constructed to pass partially thereunder for a purpose to be hereinafter described. c "The railend 16b is provided with the upwardly projecting fin 40, and secured to the upper flange ofthe rail 16 by rivets 40a, or the like. This `fin is provided with an aperture therein indicated 'by numeral 40". A plate 45 is suitably secured to thek outer end of the beam 32, the lower corner of the beam 32 being cut away along the `dotted line 32C, as indicated in Fig. 6. The plate isv bent, or offset, below the vbeam 32 to substantially aline with the web thereof.

5 Adjacent its lower corner, the plate 45 isVK provided with the hole or aperture 45a, through which extends a headed pin 47. Pivoted upon the pin 47 at either side of the plate 45 is the U-shaped latch 5() having the free ends'thereof curved as indicated at 50a. Adjacent the closed end the latch 50 is provided with the elongated lslot 50". This latch 50 is movable to a position engaging the fin 40 with the slot 50b in alinement with hole 40h, a locking pin or keyy being in sertable through both to lockthe rail section .3()inalinement with the rail16 as shown ink Figure 6. 7 The latch 50 is so constructed and arranged that a portion thereof to the right of the hinge pin 47, as viewed in Fig. 6, is heavier than the `opposite portion and when the pin 5 1 is removed, the'latch 50 willtilt j to position indicated in dotted lines in Fig.

6, this being termed blockposition At theopposite end the rail section ,30 is provided with filler blocks 3O a for a purpose hereinafter described.

6 Swiveled'to the trolley 20 and depending therefrom vis' the pulley hoist, generally indicated by numeral this being of well known construction, andprovided with four grabv hooks V56 at its lowerend, likewise swiveled through the medium ofblock 57.V

l The wheels 12, mounted uponthe track# way 60, constructed in sections 60a, each comprising a pair of parallel rail sections 60h, carried by and attached to the cross ties or sleepers 60C.

In the operation of the structure described. the trolley is moved to the position shown in Fig. 1 overlying the section of track to be moved and the grab hooks 56 placed in engagement with the rail section 60h, after which the hoist 55 is operated in well known manner to lift the rail section to the height desired. The trolley and hoist are then moved along the rail 16 and onto the rail section 30, after whichv the pin 5l is removed. whereupon the latch 50 will move to block position, preventing accidental movement of the trolley from the section 30. The blocks 30a limit moyement in the opposite direction of the trolley 20, as will be obvious. The post crane may then be rotated so that the beam 32 will swing to the position, for example, indicated by dotted lines in Fig. 3, with the track section in alinement with the remainder of the trackway, when the hoist may be loperated to lower the track section and to prevent the release of the grab hooks. After this the. post crane is swung to alined position and locked therein by the latch 50. The trolley is then moved to positionk at the rear of the body 10a ready for further use.

The arrangement and positioning of the beam 32 with respect to the platform or circle 13, permits the swinging of the former under the latter to proper alined position 0f the track sections of the trackway, so that the lifting or placing of the moved track section other than that accomplished by the hoist is unnecessary, so that in ordinary operation one laborer may accomplish what would require a large number of men a considerable time in present day practice.

It will be apparent that my invention is susceptible of modification and I do not wish to be restricted to the embodiment shown Vand described, except as defined in the appended claims."

1. In combination, a device of the character described, a rail carried by said device, carrying means movable on said rail, a crane carried by said device, a rail section alinable with said rail and carried by said crane, said crane being movable to move said section from said alinement to a Ydesired position, said carrying means being movable from said rail onto said rail section, and means to prevent accidental movement of said carrying meansfrom said section.

2. In combination, a device of the charu acter described, a rail carried by said device, carrying means movable on said rail, a crane carried by said device, arailsection alinable with saidrail and carried by said crane, said crane being movable to move said Sitin, Ameans to lock-said section infaline-` :lasagnes section -fro-mcsa-ifd alineiiientftoa desired "pomen-t with said rail, said means Vcomprising a latch member movable with said section, vsaid carrying means being movable onto said rail section, said latch memberrbeing mounted vto normally move to a block positiontoprevent accidental movement of said carrying means oif said rail section.

3. In structure of the class described, a rail, a swinging beam, a rail section carried thereby and alinable with said rail, means to lock said rail and rail section in alined position, said means comprising a .fin carried by one of said members and a pivoted latch engageable with said fin and carried by the other of said members.

4. In structure of the class described, a rail, a swinging beam, a rail section carried thereby and alinable with said rail, means to lock said rail and rail section in alined position, said means comprising a fin carried by one of saidmembers and a pivoted latch engageable with said fin and carried by the other of said members, said fin and latch being apertured to permit insertion of a locking pin therethrough.

5. In mechanism of the class described, a rail, a swinging beam, a rail section carried thereby and movable into alinement with said rail, a pivoted latch carried by said section, means engageable by said latch to lock said rail section to said rail, said latch being so mounted as to normally cause one end thereof to move to block position with respect to said section.

6. In combination, with a device of the character described, comprising a supporting frame and a body carried thereby, a rail spaced from said frame, a supporting means movably mounted on said rail, a hoisting means carried by said supporting means, a track rail engaging means carried by said hoisting means, a swinging crane carried by said frame and provided with a rail section alinable with said rail, said supporting means being movable onto said rail section when the latter is in alinement with said rail, and means to normally prevent return movement of said carrying means.

7. In combination with a device of the character described, comprising a supporting frame and a body carried thereby, a rail spaced from said frame, a supporting means movably mounted on said rail, a hoisting means carried by said supporting means, a track rail engaging means carried by said hoisting means, a swinging crane carried by said-frame and provided with a rail section alinable With said rail, said supporting means being movable onto said rail section when the latter is in alinement with said rail, and means to normally prevent return movement of said carrying means, said last named means being engageablel with said raillto *lock fsaid section in Aalm-ement therewith.

8. In combination with -a jdev-ce -of `the character described,-comprising `a supporting frame, :a body carried thereby, Aand @a rotatable circle lat one end thereof, a rail spaced -from said A"frame parallel `to one side thereofand having an 4rangu'larly disposed portion parallel to the rear end thereof, a trolley member movable on said rail, a swinging crane supported upon said frame, and a rail section alinable with said rail and carried by said crane, said section being movable with said crane to a position underlying said circle at the front of said device.

9. In combination with a device of the character described, comprising a supporting frame, a body carried thereby, a rotatable circle at one end thereof, a rail spaced from said frame parallel to one side thereof and having an angularly disposed portion parallel to the rear end thereof, a trolley member movable on said rail, a swinging crane supported'upon said frame, a rail section alinable with said rail and carried by said crane, said section being movable with said crane to a position underlying said circle at the front of said device, and a trackway engaging and lbioisting means carried by said trolley mem- 10. In combination with a device of the character described, comprising a supporting frame, a body carried thereby, a rotatable circle at one end thereof, a rail spaced from said frame parallel to one side thereof and having anI angularly disposed p0rtion parallel to the rear end thereof, a trolley member movable on said rail, a swinging crane supported upon said frame, a rail section alinable with said rail and carried by said crane, said section being movable with said crane to a position underlying said circle at the front of said device, and a trackway engaging and hoisting means carried by said trolley member, said trolley member being movable onto said rail section.

11. In combination with a device of the character described, comprising a supporting frame, a body carried thereby, a rotatable circle at one end thereof, a rail spaced from said frame parallel to one side thereof and having an angularly disposed portion parallel to the rear end thereof, a trolley member movable on said rail, a swinging crane supported upon said frame, a rail section alinable with said rail and carried by said crane, -said section'being movable with said crane to a position underlying said circle at the front of said device, a trackway engaging and hoisting means carried by said trolley member, said trolley member being movable onto said rail section, and means engageable with said rail and carried by said rail section, said last named means being normally projectable to prevent movement of said trolley member o from said oted Y latch engageable with said fin and rail section. l carried by the other of said members, Said 10 l2. In structure of the class described, aY latch having a looped portion fitting over rail, a swinging beam, a rail Section cair- Said n.

ried thereby and alnztble with said rail, In testimony whereof, I have subscribed means to lock said rail and rail section in my name.

alined position, said means comprising a n carried by one of said members and a piv- CHARLES B. MAGRATH. 

